[Jdub]

I'd be sure to clean all your jets, replace the gas filter, and get fresh gas through the whole system if you haven't already. Old gas will play havoc with carbs.

If you can be sure of the plug, timing, and mixture, then drive the car to break in the 'rings and get the fresh gas through. Gummy buildup from old gas sitting in float bowls, etc. used to cause me no end of headaches with Amal etc. carbs on my Brit bikes.

Sorry not to be of more help,
John